build(deps): bump third_party/yosys from `4581f75` to `8acc77c` (#2468)

Bumps [third_party/yosys](https://github.com/YosysHQ/yosys) from `4581f75` to `8acc77c`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](https://github.com/YosysHQ/yosys/compare/4581f75b03a25b615a9715516854c424b580f7ab...8acc77c1e0e7c67ab174875556ce6743faf9efae)

---
updated-dependencies:
- dependency-name: third_party/yosys
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
diff --git a/third_party/yosys b/third_party/yosys
index 4581f75..8acc77c 160000
--- a/third_party/yosys
+++ b/third_party/yosys
@@ -1 +1 @@
-Subproject commit 4581f75b03a25b615a9715516854c424b580f7ab
+Subproject commit 8acc77c1e0e7c67ab174875556ce6743faf9efae